docker-compose.yml

# Full local observability stack: the API, Prometheus scraping it, and Grafana
# pre-provisioned with a dashboard. Brings the whole thing up with one command:
#
#   docker compose up --build
#
# Then:
#   API     -> http://localhost:8000  (demo at /demo, docs at /docs)
#   Prom    -> http://localhost:9090
#   Grafana -> http://localhost:3000  (anonymous viewer; admin/admin to edit)

services:
  api:
    build: .
    image: distilbert-emotion-api:local
    container_name: emotion-api
    environment:
      OFFLINE: "1"            # flip to 0 (and use requirements-ml) for the real model
      LOG_LEVEL: "INFO"
      MAX_BATCH_SIZE: "64"
      BATCH_MAX_DELAY_MS: "5"
    ports:
      - "8000:8000"
    healthcheck:
      test: ["CMD", "python", "-c", "import urllib.request,sys; sys.exit(0 if urllib.request.urlopen('http://127.0.0.1:8000/healthz',timeout=2).status==200 else 1)"]
      interval: 15s
      timeout: 3s
      retries: 5
      start_period: 10s
    restart: unless-stopped

  prometheus:
    image: prom/prometheus:v2.53.0
    container_name: emotion-prometheus
    volumes:
      - ./observability/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml:ro
    command:
      - "--config.file=/etc/prometheus/prometheus.yml"
      - "--storage.tsdb.retention.time=2h"
    ports:
      - "9090:9090"
    depends_on:
      - api
    restart: unless-stopped

  grafana:
    image: grafana/grafana:11.1.0
    container_name: emotion-grafana
    environment:
      GF_SECURITY_ADMIN_USER: admin
      GF_SECURITY_ADMIN_PASSWORD: admin
      GF_AUTH_ANONYMOUS_ENABLED: "true"
      GF_AUTH_ANONYMOUS_ORG_ROLE: Viewer
      GF_USERS_ALLOW_SIGN_UP: "false"
    volumes:
      - ./observability/grafana/provisioning:/etc/grafana/provisioning:ro
      - ./observability/grafana/dashboards:/var/lib/grafana/dashboards:ro
    ports:
      - "3000:3000"
    depends_on:
      - prometheus
    restart: unless-stopped